On signing this Agreement Residents shall pay one full months' rent in the form. Here are the 9 critical rental forms residential landlords need.Besides listing required rental forms, we explain them to you. Use a San Diego residential lease agreement to ensure a fair and legally compliant tenancy. Download your template here. In San Diego, it's essential that every adult living in a rental unit must sign the lease and adhere to the responsibilities stated on the legal contract. A California lease agreement allows a landlord of residential or commercial property to write a legally binding rental contract with a tenant. Contact us at 858.278. Discover the steps to correctly add an addendum to your rental agreement in San Diego, CA. Enhance your lease agreement with our guide. Lease agreements must include the complete address of the rental property (including building name and unit number).